view tests/revlog-formatv0.py @ 37844:8fb9985382be

pycompat: export queue module instead of symbols in module (API)

Previously, pycompat and util re-exported individual symbols from the
queue module. This had the side-effect of forcing the loading of the
queue module whenever pycompat/util was imported.

These symbols aren't used very often. So importing the module to
get a handle on the symbols is wasteful.

This commit changes pycompat so it no longer exports the individual
symbols in the queue module. Instead, we make the imported module
a "public" symbol. We drop the individual symbol aliases from the
util module. All consumers are updated to use pycompat.queue.* instead.

This change makes 300 invocations of `hg log -r. -T '{rev}\n'` a little
faster:

before: 18.44s
after:  17.87s

Differential Revision: https://phab.mercurial-scm.org/D3441

#!/usr/bin/env python
# Copyright 2010 Intevation GmbH
# Author(s):
# Thomas Arendsen Hein <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

"""Create a Mercurial repository in revlog format 0

changeset:   0:a1ef0b125355
tag:         tip
user:        user
date:        Thu Jan 01 00:00:00 1970 +0000
files:       empty
description:
empty file
"""

from __future__ import absolute_import
import binascii
import os
import sys

files = [
    (b'formatv0/.hg/00changelog.i',
     b'000000000000004400000000000000000000000000000000000000'
     b'000000000000000000000000000000000000000000000000000000'
     b'0000a1ef0b125355d27765928be600cfe85784284ab3'),
    (b'formatv0/.hg/00changelog.d',
     b'756163613935613961356635353036303562366138343738336237'
     b'61623536363738616436356635380a757365720a3020300a656d70'
     b'74790a0a656d7074792066696c65'),
    (b'formatv0/.hg/00manifest.i',
     b'000000000000003000000000000000000000000000000000000000'
     b'000000000000000000000000000000000000000000000000000000'
     b'0000aca95a9a5f550605b6a84783b7ab56678ad65f58'),
    (b'formatv0/.hg/00manifest.d',
     b'75656d707479006238306465356431333837353835343163356630'
     b'35323635616431343461623966613836643164620a'),
    (b'formatv0/.hg/data/empty.i',
     b'000000000000000000000000000000000000000000000000000000'
     b'000000000000000000000000000000000000000000000000000000'
     b'0000b80de5d138758541c5f05265ad144ab9fa86d1db'),
    (b'formatv0/.hg/data/empty.d',
     b''),
]

def makedirs(name):
    """recursive directory creation"""
    parent = os.path.dirname(name)
    if parent:
        makedirs(parent)
    os.mkdir(name)

makedirs(os.path.join(*'formatv0/.hg/data'.split('/')))

for name, data in files:
    f = open(name, 'wb')
    f.write(binascii.unhexlify(data))
    f.close()

sys.exit(0)